Above,
an overlay of a petroglyph--from the Columbia River Gorge
in the state of Washington--with Stonehenge.

Dr. Anthony
Peratt, a physicist at Los Alamos National Laboratory, will
give a presentation on 'Talking Rocks' at the University Museum's
Celestial Catastrophes in Human Prehistory program,
October 17, at 6 p.m. Registration is required (215)
898-4890. Dr. Peratt made the discovery by digitally recording
many tens of thousands of petroglyphs in the Southwest while
noting their positions and orientations through global positioning
satellites. The data was then processed on a large computer
to look for similarities between the petroglyphs themselves
as well as with other objects made by man thousands of years
ago.

CANCELLED

The talk scheduled
for October 22, Pharmacogenetics: Trials in a Drug Therapy,
has been cancelled.

17Turkey's
Role in Combatting Terrorism; Stephen Kinzer, New York Times
Foreign Correspondent; 4:30 p.m.; B-21, Stiteler Hall (Middle East
Center; Annenberg School for Communication International Relations).